伊犁河扬水工程中空气罐水锤防护的设计与优化

Design and Optimization of Air Chamber for Water Hammer Protection in Yili River Water Supply Project

长距离输水工程水锤问题日益突出,水锤防护难度大。针对伊犁河扬水工程存在的水锤问题,根据瞬变流基本理论,建立了空气罐的水力分析模型,并结合工程实例对空气罐的水锤防护方案进行了分析优化。研究表明,通过理论设塔方法可以方便地得到空气罐的初设方案,结合水力过渡过程分析对初设方案进一步优化,可以在不影响水锤防护效果的情况下,显著减小空气罐的体型尺寸。

Water hammer is growing serious for long-distance water supply project, so water hammer protection is more and more difficult. Ai- ming at Yili River water supply project, hydraulic analysis model is built based on theory of hydraulic transients, and case study is made for analysis and optimization of air chamber. Study indicates preliminary design of air chamber can be realized easily by method of theoretical analysis, and optimized through hydraulic transients analysis of accidental pump-stop, so more efficient design scheme of air chamber is obtained with less shape.